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Flower induction and development in saffron: Timing and hormone signalling pathways

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Flower induction and development in saffron: Timing and hormone signalling pathways

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dc.contributor.author Renau-Morata, Begoña es_ES
dc.contributor.author Nebauer, Sergio G. es_ES
dc.contributor.author García-Carpintero, Víctor es_ES
dc.contributor.author Cañizares Sales, Joaquín es_ES
dc.contributor.author Minguet, E.G. es_ES
dc.contributor.author De los Mozos, Marcelino es_ES
dc.contributor.author Molina Romero, Rosa Victoria es_ES
dc.date.accessioned 2022-09-26T18:02:49Z
dc.date.available 2022-09-26T18:02:49Z
dc.date.issued 2021-06 es_ES
dc.identifier.issn 0926-6690 es_ES
dc.identifier.uri http://hdl.handle.net/10251/186579
dc.description.abstract [EN] The demand for saffron is expected to rise in the coming years due to its nutraceutical and medicinal properties. To cope with this, it will be necessary to develop a mechanised production of saffron. Upgrading the production methods requires accurate control of the flowering time in this species. Nevertheless, little is known about the control of flowering time in Crocus sativus L. The aim of this study is to gain insight into the floral induction regulatory networks operating in this species. A transcriptomic analysis was performed from saffron main buds in different stages of development. The identification of putative integrators of flowering time signals, like FT, as well as meristem identity genes, such as LFY and TFL1, permitted the definition of the time of flowering induction of the buds, being able to use them as molecular markers. The identification of the transcripts encoded by a DROOPING LEAF-like (DL) gene is of particular relevance because this gene might be a novel factor for carpel specification in saffron. To elucidate the hormonal signalling networks working during flower induction, transcriptomic data were used, and the content of IAA, ABA and gibberellins was determined in competent and non-competent buds to flower, during the saffron life cycle. Our results suggested that ABA might be negatively regulating corm dormancy release, but its involvement in flower induction cannot be ruled out. ABI5 and the mediator of ABA regulated dormancy gene MARD1, could be key players of this pathway. In addition, a drop in GA4 levels may also be a necessary, but insufficient, condition for floral induction and development. DELLA, TFL1 and PIF3 genes might be involved in the gibberellin pathway. Notably, IAA seems to be a positive regulator of the process, involving MP/ARF5 and ANT genes in the pathway. Taken together, these results pave the way to the unveiling of the regulatory networks controlling the vegetative-to-reproductive phase change in saffron. es_ES
dc.description.sponsorship The activities of this study have been supported by a project funded by the "Ministerio de Ciencia, Innovacion y Universidades de Espana" [AGL2016-77078-R]. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Industrial Crops and Products es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Crocus sativus es_ES
dc.subject Floral transition es_ES
dc.subject Flowering es_ES
dc.subject Hormonal control es_ES
dc.subject Molecular markers es_ES
dc.subject Regulatory networks es_ES
dc.subject.classification GENETICA es_ES
dc.subject.classification FISIOLOGIA VEGETAL es_ES
dc.title Flower induction and development in saffron: Timing and hormone signalling pathways es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.indcrop.2021.113370 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI//AGL2016-77078-R//CONTROL DE LA FLORACION Y OPTIMIZACION DE LA NUTRICION PARA LA PRODUCCION DE AZAFRAN EN CULTIVO FORZADO EN INVERNADERO/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Producción Vegetal - Departament de Producció Vegetal es_ES
dc.description.bibliographicCitation Renau-Morata, B.; Nebauer, SG.; García-Carpintero, V.; Cañizares Sales, J.; Minguet, E.; De Los Mozos, M.; Molina Romero, RV. (2021). Flower induction and development in saffron: Timing and hormone signalling pathways. Industrial Crops and Products. 164:1-19. https://doi.org/10.1016/j.indcrop.2021.113370 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.indcrop.2021.113370 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 19 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 164 es_ES
dc.relation.pasarela S\430495 es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.subject.ods 02.- Poner fin al hambre, conseguir la seguridad alimentaria y una mejor nutrición, y promover la agricultura sostenible es_ES
upv.costeAPC 3775,2 es_ES


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